Roller-feed-table driving mechanism.



No. 789,182. PATENTED MAY 9, 1905.

R. H. STEVENS.

ROLLER FEED TABLE DRIVING MECHANISM. APPLICATION FILED FEB. 1. 1904,

3 SHEETS-SHEET 1.

UOOUOOUbOUOOUG v WITNESSES I INVENTOR WMQMQ M, A;

PATENTED MAY 9, 1905.

R. H. STEVENS. ROLLER FEED TABLE DRIVING MECHANISM.

APPLICATION FILED FEB. L 1904.

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mvEm'oR WITNESSES R. H. STEVENS.

ROLLER FEED TABLE DRIVING MECHANISM.

- APPLIGATION FILED r2351. 1904.

PATENTED MAY 9, 1905.

INVENTOR NITED STATES Patented May 9, 1905.

PATENT FFICE.

ROLLER-FEED-TABLE DRIVING MECHANISM.

SPECIFICATION forming part of LettersPatent No. 789,182, dated May 9,1905. Application filed February 1, 1904. Serial No. 191,444.

To (LZZ whom, it may concern.-

Be it known that I, RICHARD H. STEVENS, of Munhall, Allegheny county,Pennsylvania, have invented a new and useful Improvement inRoller-Feed-Table Driving Mechanism, of which the following is a full,clear, and exact description, reference being had to the accompanyingdrawings, forming a part of this specification, in which Figure 1 is apartial plan, and Fig. 2 an end elevation, partly in section, of atilting rollerfeed table equipped with my improved d1 iving mechanism.Fig. 3 is a diagrammatic side elevation showing the position of the spurdriving gearing when the tilting table is in its extreme raised orlowered position. Fig. 4 is a partial end elevation of the drivinggears;and Fig. 5 is a vertical section on the meeting pitch-lines of thedrivin -pinion and idler wheel, showing the slightly rounded faces ofthe teeth in the driving-pinion.

My invention relates to that class of tilting feedtables wherein theside shaft on the table is driven by gearin connections with an externalmotor, this side shaft driving the feed-table rollers. Heretofore inthis type of table the side shaft has been provided with a pinionintermeshing with a toothed wheel on an outside parallel shaft driven bybevelgearing from the driving-shaft, which driving-shaft extends in linewith the axis on which the table turns. With this type of connectionsthe wearing down of the bearings in which the table is pivotedcauses-the bevel-wheels to partially disengage, so that only parts ofthe end portions of their teeth engage each other. My invention isdesigned to overcome this difficulty; and it consists in placing adriving spur-pinion on the outside driving-shaft, which pinion is inline with the spur-pinion on the side shaft of the table, and also inproviding an idler between them.

It also consists in rounding or beveling the faces of the teeth of thedriving-pinion on the outside shaft to allow for the tilting of thetable relatively to this shaft.

It also consists in the construction and ar rangement of the parts, ashereinafter more fully described and claimed.

Inthe drawings, in which I show my invention as applied to a plate-mill,2 represents the rollers of a tilting feed-table; 3, the table lineshafts, having miter-gears 4 mounted thereon, which engage similarmiter-gears 5 on the shafts of the feed-rollers 2. On the line-shafts 3are also mounted spur-gears 6, which are driven, through idlerspur-wheels 7, by the spur driving-pinions 8 on the driving-shafts 9.The idler-wheels 7 are supported by counter-shafts 10, which are earriedin suitable bearings 11, mounted on the sides 12 of the feed-table. Theouter ends of the table pivot-shaft 13 are preferably mounted inpivot-bearings 14, which are beyond the sides 12 of the feed-table. Bythus placing the pivot-bearings beyond the sides of the table they areeasily repaired or renewed. By slightly beveling or rounding the facesof the teeth in the idler-gears or in the spur driving-pinions the angleformed between the faces of the teeth in the spurdriving-pinion and thelengthening of the centers between the driving gear and idler gear,which are caused by the raising and lowering of the table or by wearingof the pivot-shaft bearings, does not interfere with the meshing of thespur-driving-gear teeth. In Fig. 5 I show the tooth 15 of the spurdriving-pinion as thus rounded or beveled off, the teeth 16 of the idlerbeing shown in the extreme tilted positions by the full and dottedlines, respectively.

The advantages of the invention result from the use of spur-gearingarranged so that the working of the gearing is not affected by the wearon the pivot-shaft bearings or the raising or lowering of the table andfrom the arrangement of the different parts of the driving, mechanism,which permits any part of the mechanism to be quickly and easilyrepaired or replaced. a

The faces of the teeth in the idler-wheels may be beveled or roundedinstead of those of the drivingpinion, as shown, or the teeth of bothwheels may be so beveled or rounded. The pivot-bearings may be insidethe table sides instead of the outside, as shown. The

spur-gearing may be in line with the tableaxls, and many othervariations may be made in the driving mechanism without departing frommy invention, since What I claim is 1. A tilting feed-table having aside shaft mounted on the table for driving the tablerollers, a drivenspur-wheel on said shaft, a driving-shaft in stationary bearingsalongside the feed-table, a driving spur-wheel on the drivingshaft, anda counter-shaft mounted in bearin s carried on the tilting table andhaving an idler spur-wheel meshing with the driven spur-wheel on theroller-driving side shaft and with the driving spur-Wheel on thedriving-shaft; substantially as described.

2. A tilting feed-table having a side shaft mounted on the table fordriving the tablerollers, a driven spur-wheel on said shaft, adriving-shaft in stationary bearings alongside the feed-table, a drivingspur-wheel on the driving-shaft and a counter-shaft mounted in bearin scarried on the tilting tableand having an idler spur-wheel meshing withthe driven spur-wheel on the roller-driving side shaft and with thedriving spur-wheel on the driving-shaft, at least one of said spurgearwheels having rounded or beveled faces on its teeth; substantiallyas described.

3. A tilting feed-table having a side shaft arranged to drive thetable-rollers, a driving shaft in stationary bearings alongside thefeed-table and three spur-wheels connecting said shafts, said wheelsbeing out of line with the table-axis and two of them being carried inbearings fixed to and movable with the table; substantially asdescribed.

4. A tilting feed-table having a side shaft mounted in bearings fixed onand movable with said table, said shaft being arranged to drive thetable-rollers and having a spurwheel thereon, a driving-shaft mounted instationary bearings independent of the table and extending alongside it,and a spur-wheel on the driving shaft intermeshing directly with thespur-wheel on the table side shaft; substantially as described.

5. A tilting feed-table having a side shaft mounted in bearings fixed onand movable with said table, said shaft being arranged to R. H. STEVENS.

Witnesses:

JOHN MILLER,

H. M. OoRwIN.

